Currently, we bind right/left arrow keyboard keys to navigate to the next/previous page of listens.
When the user is writing text in an input (for example in the "pin recording" and "CritiqueBrainz review" modals where there is a large text input) and uses keyboard arrows to step through the text they are writing, navigation of listens pages occurs in the background.

The existing code has support for ignoring navigation keys if an input is currently in focus:
https://github.com/metabrainz/listenbrainz-server/blob/master/listenbrainz/webserver/static/js/src/RecentListens.tsx#L361-L363

However, `document.activeElement?.localName === "input"` does not take into account textarea elements (inputs != textarea).
The code should be amended to also support textareas and any other user input elements